Hard Mathematics Chapter 1: Real Numbers Class 10 Level 14

निम्न में से कौन-सा व्यंजक निश्चित रूप से अपरिमेय है?

Which of the following expressions is definitely irrational?

Explanation opens after your attempt
Correct Answer

C. \(\sqrt{75}-4\sqrt{3}\)

Step 1

Concept

Simplify each radical first.

Step 2

Why this answer is correct

\(\sqrt{75}=5\sqrt{3}\), so \(\sqrt{75}-4\sqrt{3}=\sqrt{3}\), which is irrational.

Step 3

Exam Tip

Options where like terms cancel completely may give rational zero. चरण 1: पहले हर मूल को सरल करें। चरण 2: \(\sqrt{75}=5\sqrt{3}\), इसलिए \(\sqrt{75}-4\sqrt{3}=\sqrt{3}\), जो अपरिमेय है। चरण 3: जिन विकल्पों में समान पद पूरी तरह कट रहे हों, वे शून्य परिमेय दे सकते हैं।

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What is the correct answer to this Mathematics MCQ?

The correct answer is C. \(\sqrt{75}-4\sqrt{3}\).

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